RAMALLAH, West Bank  Palestinian officials say Israeli undercover troops broke into a West Bank house in a failed arrest raid, igniting a violent protest and signaling that Israeli-Palestinian security coordination may be in trouble.

The Israeli military says some 500 Palestinians threw stones and firebombs at troops near the town of Jenin. Palestinian officials say a Palestinian was shot in the hand by army fire and an elderly woman was bitten by an army dog.

In recent years, the West Bank has been relatively calm as a result of coordination between Israel's military and Palestinian security forces in tracking down militants.

However, Palestinian officials say Israel has stepped up unilateral actions, such as surprise arrest raids, since the Palestinians won U.N. recognition of a state of Palestine late last year.